Question

On which dates does the sun shines vertically overhead at tropic of capricorn or

Answer 1

The Tropic of Capricorn is the circle marking the latitude 23.5 degrees south where the sun is directly overhead at noon on December 21, the beginning of winter in the northern hemisphere.
Always Smile Abhinav Raj Shukla

Answer 2

Tropic of Capricorn oh 22nd December

Subsequently, following the September equinox, the Sun emerges to migrate to the south direction and is perpendicularly upwards at Tropic of Capricorn on December 22. This migration of sun to south direction in winters is known as the winter solstice. On this day, the night which is longest and day which is the shortest of the year is confronted by the northern hemisphere.